Process for hardening microcapsules

Details Process for hardening microcapsules Process for hardening microcapsules

1974-12-13

1977-04-05

Lovering, Richard D.

Compositions

Preservative agents

Anti-corrosion

252299, 252522, 282 275, 424 35, 427338, B01J 1302

Patent

active

040160980

ABSTRACT:
In a process for producing microcapsules which comprises microencapsulating hydrophobic oil droplets by complex coacervation using at least two hydrophilic colloids having opposite electric charges and being ionizable in water with at least one of the colloids being gellable, the improvement comprising hardening the coacervate wall by the presence of an oxidation product of a polysaccharide as a hardening agent and adjusting the pH.

REFERENCES:
patent: 2824092 (1958-02-01), Thompson
patent: 2886445 (1959-05-01), Rosenthal et al.
patent: 3687865 (1972-08-01), Katayama et al.

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